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Assume fchown(2) exists

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It is required by POSIX.1-2001.

Cc: Christian Göttsche <cgzones@googlemail.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
This commit is contained in:
Alejandro Colomar 2022-12-02 22:31:38 +01:00 committed by Serge Hallyn
parent 9c86e07067
commit e71c23586a
2 changed files with 1 additions and 8 deletions
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2
configure.ac
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@ -45,7 +45,7 @@ AC_CHECK_HEADERS(crypt.h utmp.h \
dnl shadow now uses the libc's shadow implementation
AC_CHECK_HEADER([shadow.h],,[AC_MSG_ERROR([You need a libc with shadow.h])])
AC_CHECK_FUNCS(arc4random_buf fchown fsync futimes \
AC_CHECK_FUNCS(arc4random_buf fsync futimes \
getentropy getrandom getspnam getusershell \
getutent initgroups lckpwdf lutimes \
setgroups updwtmp updwtmpx innetgr getpwnam_r \

7
lib/commonio.c
View File

@ -251,16 +251,9 @@ static /*@null@*/ /*@dependent@*/FILE *fopen_set_perms (
return NULL;
}
#ifdef HAVE_FCHOWN
if (fchown (fileno (fp), sb->st_uid, sb->st_gid) != 0) {
goto fail;
}
#else /* !HAVE_FCHOWN */
if (chown (name, sb->st_mode) != 0) {
goto fail;
}
#endif /* !HAVE_FCHOWN */
if (fchmod (fileno (fp), sb->st_mode & 0664) != 0) {
goto fail;
}